Fix some small leaks

dgl/src/Window.cpp

@@ -264,6 +264,12 @@ struct Window::PrivateData {
             fView = nullptr;
         }
 
+        if (fTitle != nullptr)
+        {
+            std::free(fTitle);
+            fTitle = nullptr;
+        }
+
 #if defined(DISTRHO_OS_WINDOWS)
         hwnd = 0;
 #elif defined(DISTRHO_OS_MAC)

distrho/src/DistrhoPluginJack.cpp

@@ -184,13 +184,20 @@ public:
 
     ~PluginJack()
     {
-        if (fClient == nullptr)
-            return;
+        if (fClient != nullptr)
+            jack_deactivate(fClient);
 
-        jack_deactivate(fClient);
+        if (fLastOutputValues != nullptr)
+        {
+            delete[] fLastOutputValues;
+            fLastOutputValues = nullptr;
+        }
 
         fPlugin.deactivate();
 
+        if (fClient == nullptr)
+            return;
+
 #if DISTRHO_PLUGIN_IS_SYNTH
         jack_port_unregister(fClient, fPortMidiIn);
         fPortMidiIn = nullptr;